/**
 * Best-effort lookup of GitHub pull requests for a worktree branch via the
 * `gh` CLI. `crew status` uses this to surface PR links inline; failures
 * (gh not on PATH, not authenticated, non-GitHub remote) are silent — the
 * caller falls back to omitting the row.
 *
 * The lookup runs with `cwd` set to the worktree directory and lets `gh`
 * resolve the GitHub repo from that checkout's own `origin` remote. This
 * handles bare config names, full `owner/repo` slugs, forks, and SSH/HTTPS
 * remotes uniformly — we never reconstruct the slug ourselves.
 *
 * Whatever GitHub returns is returned verbatim. We do not filter by commit
 * history: the branch name on the remote (which `gh pr list --head` matches)
 * is already a strong identifier for "the PR(s) for this checkout". Stale
 * PRs from a long-dead branch with a reused name surface as `(merged)` or
 * `(closed)` in the status output, which is more informative than silently
 * dropping them. Decision-making callers (e.g. `crew task done`) filter by
 * lifecycle state instead.
 */
export interface PullRequestSummary {
    url: string;
    number: number;
    /** Lowercased lifecycle: "open" | "merged" | "closed". */
    state: string;
    title: string;
}
interface LookupArgs {
    /** Worktree directory; `gh` resolves the GitHub repo from its git remote. */
    cwd: string;
    /** Branch name to filter PRs by. */
    branchName: string;
    signal?: AbortSignal;
}
export interface ResolvedPullRequest {
    number: number;
    /** Head branch name the PR is built from (`headRefName`). */
    branch: string;
    title: string;
    url: string;
    /** Lowercased lifecycle: "open" | "merged" | "closed". */
    state: string;
    /** True when the head branch lives on a fork rather than the base repo. */
    isCrossRepository: boolean;
}
interface ResolvePullRequestArgs {
    /** Clone directory used as `gh`'s cwd so it resolves the GitHub repo from its remote. */
    repoDir: string;
    /** PR number or URL accepted by `gh pr view`. */
    pr: string;
    signal?: AbortSignal;
}
/**
 * Resolve a single pull request to the metadata `crew open` needs (head branch,
 * title, url, fork flag) via `gh pr view`. Unlike `findPullRequestsForBranch`,
 * the caller named a specific PR, so failures are fatal: a missing `gh`, an
 * unauthenticated host, or an unknown PR all throw with a clear message rather
 * than degrading to "no PR info".
 */
export declare function resolvePullRequest(arguments_: ResolvePullRequestArgs): Promise<ResolvedPullRequest>;
export declare function findPullRequestsForBranch(arguments_: LookupArgs): Promise<readonly PullRequestSummary[]>;
export {};
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